Patents by Inventor Hajime Takesada

Hajime Takesada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5093655
    Abstract: A liquid-crystal display apparatus visually compensates the flickers of the entire face of the liquid-crystal panel through reversing the polarity of the picture signals in adjacent columns to be applied to drive the liquid-crystal panel with a plurality of display picture-elements. The polarity is reversed for each of the display picture element, of at least one or more adjacent within at least the same row, and/or for at least one horizontal scanning period or more.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: March 3, 1992
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Atsuyoshi Tanioka, Tatsuo Katagishi, Hajime Takesada
  • Patent number: 5051739
    Abstract: A driving circuit for an image display apparatus wherein the respective rows and columns of the active matrix panel with a plurality of picture elements disposed on the matrix shape are respectively selected by the clock pulses of the given frequency to drive each of the picture elements. A counter which counts the clock pulses to introduce the binary count values and the inversion outputs, and a decoder which decodes the counter outputs to generate the pulses that sequentially shift in synchronous relation in the clock pulses are provided to feed the counter output from both the ends of the code signal line of the decoder so that the decoder may be always operated normally.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: September 24, 1991
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Toshiaki Hayashida, Hajime Takesada, Mitsuhiro Yamasaki